Hello,
G2 beats that Bello. I will tell you why:
1) Display - G2 mini got better display than bello 2
Physical size - 5.0 inches vs 4.7 inches (LG G2 mini got smaller display)
Resolution - 480 x 854 pixels (bello2) vs 540 x 960 pixels (LG g2 mini)
Pixel density - 196 ppi (bello2) vs 234 ppi (LG g2 mini)
Technology - TFT (bello2) vs vIPS LCD (LG g2 mini)
2) Camera - G2 mini got beeter camera of 8MP
Camera - 5 megapixels (bello2) vs 8 megapixels
3) Battery, CPU, GPU
Ther are similar here... the difference here are not very important.
NOTE: LG G2 mini... this is my opinion!
Regards,
GeRgY